Finding the Fourth Proportional to 22,238,440.56, 30,673,227.61 and 20,408,807.70

Step by Step Solution

1. Step 1: Write the proportion equation
   22,238,440.56 : 30,673,227.61 = 20,408,807.70 : x
2. Step 2: Convert to fraction form
   22,238,440.56/30,673,227.61 = 20,408,807.70/x
3. Step 3: Cross multiply
   22,238,440.56x = 30,673,227.61 × 20,408,807.70
4. Step 4: Simplify right side
   22,238,440.56x = 626,004,003,677,454.50
5. Step 5: Solve for x
   x = 626,004,003,677,454.50/22,238,440.56
6. Step 6: Final answer
   x = 28,149,635.86